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<?php
/*
* This file is part of the StateMachine package.
*
* (c) Alexandre Bacco
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
require '../vendor/autoload.php';
require 'DomainObject.php';
$config = array(
'graph' => 'myGraphA', // Name of the current graph - there can be many of them attached to the same object
'property_path' => 'stateA', // Property path of the object actually holding the state
'states' => array(
'checkout',
'pending',
'confirmed',
'cancelled'
),
'transitions' => array(
'create' => array(
'from' => array('checkout'),
'to' => 'pending'
),
'confirm' => array(
'from' => array('checkout', 'pending'),
'to' => 'confirmed'
),
'cancel' => array(
'from' => array('confirmed'),
'to' => 'cancelled'
)
),
'callbacks' => array(
'guard' => array(
'guard-cancel' => array(
'to' => array('cancelled'), // Will be called only for transitions going to this state
'do' => function() { var_dump('guarding to cancelled state'); return false; }
)
),
'before' => array(
'from-checkout' => array(
'from' => array('checkout'), // Will be called only for transitions coming from this state
'do' => function() { var_dump('from checkout transition'); }
)
),
'after' => array(
'on-confirm' => array(
'on' => array('confirm'), // Will be called only on this transition
'do' => function() { var_dump('on confirm transition'); }
),
'to-cancelled' => array(
'to' => array('cancelled'), // Will be called only for transitions going to this state
'do' => function() { var_dump('to cancel transition'); }
),
'confirm-date' => array(
'on' => array('confirm'),
'do' => array('object', 'setConfirmedNow'), // 'object' will be replaced by the object undergoing the transition
),
)
)
);
// Our object
$object = new DomainObject;
// State machine is created being given an object and a config
$stateMachine = new \SM\StateMachine\StateMachine($object, $config);
// Current state is checkout
var_dump($stateMachine->getState());
// Return true, we can apply this transition
var_dump($stateMachine->can('create'));
// Return true, this transitions is applied
// In addition, callback 'from-checkout' is called
var_dump($stateMachine->apply('create'));
// Current state is pending
var_dump($stateMachine->getState());
// All possible transitions for pending state are just "confirm"
var_dump($stateMachine->getPossibleTransitions());
// Return false, this transition is not applied
// 2nd argument is soft mode: it returns false instead of throwing an exception
var_dump($stateMachine->apply('cancel', true));
// Current state is still pending
var_dump($stateMachine->getState());
// Return true, this transition is applied
// In addition, callback 'on-confirm' is called
// And callback 'confirm-date' calls the method 'setConfirmedNow' on the object itself
var_dump($stateMachine->apply('confirm'));
// Current state is confirmed
var_dump($stateMachine->getState());
// Returns false, as it is guarded
var_dump($stateMachine->can('cancel'));
// Current state is still confirmed
var_dump($stateMachine->getState());
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